Proje.. Messages v Copperplate Wins... Home - CVS Health MORGANITE ENGA.. IM| mindedge FSA Log In | Federal Stu. ks My library > MAT 243: Applied Statistics | for Science, Technology, Engin... > zyBooks catalog . ? Help/FAQ 3.3: Confidence intervals for population proportions CHALLENGE ACTIVITY 3.3.1: Confidence intervals for population proportions. Critical values for quick reference during this activity. Confidence level Critical value 0.90 2* = 1.645 0.95 2* = 1.960 0.99 2 *= 2.576 440666.2656162.qx3zay7 Jump to level 1 A poll reported 33% support for a statewide election with a margin of error of 3.08 percentage points. How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number. Ex: 1234 voters 2 3 Check Next O M N